Question

Q.13. Find the roots of the quadratic equations by using the quadratic formula.
2x2 – 3x - 5 = 0​

Answer 1

Answer:

☞ 2x²–3x–5 = 0

☞ substituting the value of x as (–1), you will get:

☞ 2(–1)²–3(–1)–5

☞ 2+3–5 = 0

☞ 5–5 = 0

☞ x = –1

☞ therefore, x+1 = 0

☞ therefore, x+1 is a root of 2x²–3x–5.

☞ Now divide the polynomial by x+1 to get the second factor.

☞ this step is given in the above attachment.

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